MLB Data Warehouse

MLB Data Warehouse

Minor League Data Warehouse

MiLB Top 10 Prospects - Week 22

Tim Kanak brings MLB DW members 15 prospects to watch from all of the minor league action in Week Twenty-Two

Tim Kanak's avatar
Tim Kanak
Sep 07, 2026
∙ Paid

Good day, this will be the finale to the 2026 T-10 articles as A ball wraps up this weekend leaving only AA and AAA to continue on for a couple more weeks (including minor league playoffs). If you are new, welcome to my weekly prospect report, now only found with an MLB Data Warehouse subscription! The goal of this column is to give you the most fantasy relevant prospect information throughout the last week all in one place. The format of this weekly prospect report will be a run-through of my top 15 prospects of the week.

I will try my best to highlight new prospects every week, rather than repeat names, unless the repeat is so warranted I just can’t help myself.

This should not be seen as a weekly stash rankings, but as a ranking of top performers each week through all levels. My updated top 150 rankings can currently be found on MLB Data Warehouse and thanks to Jon, we will now have regularly updated fScores throughout the year.

Please subscribe to the Fantasy Aceball podcast and MLB Data Warehouse podcast feeds or on YouTube (@TheTimkanak) and also follow me on X (@fantasyaceball) for more fantasy goodness!

NOTE: Rookie status is determined by 130 ABs, or 50 IPs at the Major League level.

NOTE: All stats from Sunday, Aug. 30th - Saturday, Sept. 5th 2026


T-10 Prospects

1. OF Brandon Compton (Marlins) - AAA

ETA: Early/Mid 2027

Comp: Max Muncy mashed with Jack Suwinski

Prime Skills: Brandon Compton was the darling of the combine last year before the MLB draft showing an elite power and speed skillset after only middling stats at ASU. The Marlins gambled on him in the second round and he’s had a rough time hit-tool wise, but the tools are all there as he’s rocking a slash that includes a ridiculous 35 homers, 27 steals and 62 extra base hits with a 19% walk rate. A 59% contact rate on the year is atrocious, but he does at least know how to get to good pull-side power angles. He doesn’t swing often, so it’s hard to tell if his plate approach is an attempt to wait for certain pitches or if he’s just overly passive - I tend to lean toward the later right now and the Ks are likely more due to swing and miss than bad approach. He’s having a tough time against fastballs over 93 mph thus far, but hit a max 116.9 EV in the combine, a record and puts up very good sprint speeds for his size. Splits-wise, he’s terrible against lefties and profiles as a platoon outfielder. The overall season stats are incredibly impressive and if I had to amend my Top 150 prospects, he might make the 100-150 range, but the awful hit tool (despite insane power and speed metrics) would keep him off my Top 100. This week Compton hit .512 with 3 extra base hits, 2 bombs and 5 steals while debuting in AAA as he has now advanced 3 levels on the season, this is his 2nd time on the list.

Hitter Tool Grades:

  • Hit: 25/35

  • Plate Approach: 45/60

  • Power: 55/65

  • Speed: 60/55

Prospect Rank: Top 200


2. 1B/3B Andrew Fischer (Brewers) - AA

ETA: Mid 2027

Comp: A Bryce Harper swing in a Kyle Schwarber profile

Prime Skills: Fischer’s exit velocity profile, a 92.8 mph average, a 106.8 90th-percentile mark and a 111.3 max per Baseball Savant, grades plus for any college corner bat, and the shape of his miss rate tells the more useful story, a 33.8% strikeout rate as a pro against just 14% in college shows a contactability gap that opened up against better velocity, not an approach problem, his chase rate has stayed low the entire time. Fifty-seven extra-base hits in 105 games this year confirms the power is translating even while the average takes a hit, and his ability to reach real pull-side power angles carries an otherwise below-tolerance contact rate into a genuinely productive overall season. This is Fischer’s second consecutive week on the list and his fourth time this year after hitting .462 with another 4 homers giving him 46 now on the season.

Hitter Tool Grades:

  • Hit: 35/45

  • Plate Approach: 45/55

  • Power: 60/65

  • Speed: 40/40

Prospect Rank: 49


3. SP Brody McCullough (Cubs) - AA

ETA: Mid/Late 2027

Comp: Drew Rasmussen

Prime Skills: McCullough’s file reads more like a medical chart than a scouting report. He emerged as one of Division II’s best arms at Wingate, then a strong Cape Cod League summer in 2022 got him drafted in the 10th round. The ingredients look promising: a fastball at 93-95 with good ride from a projectable 6-4 frame, a mid 80s slider that could be his best pitch, a nice changeup, plus-command grades on paper. Then the injuries hit. He missed the back half of 2024 on a 60-day injured list. He lost all of 2025 to a full-season injured list stint. He’s already sitting on another 60-day IL in 2026, a third straight year wrecked. He turned 26 this year, old for Double-A even before you count how little he’s actually pitched across three seasons. He still has the arsenal and command to be a major league starter at the back end of a rotation and if he finally got some healthy might be able to develop into a nice bounce back story. This week McCullough pitched 5 scoreless innings with 10 strikeouts, 0 walks and only gave up 2 hits.

Arsenal Grades:

  • FA (91-96 mph): 55/55

  • SL (83-85 mph): 50/60

  • CH (82-84 mph): 50/55

  • CB (77-79 mph): 35/40

  • Command: 55/55

Prospect Rank: Top 500


4. SS/3B Ronny Cruz (Nationals) - A+

ETA: 2029

Comp: Raw Cooper Pratt (yes a prospect)

Prime Skills: Cruz is a big SS who has shown some killer tools logging a 110 max EV this spring as a 19-year-old and plus speed logging 14 steals already on the season. The hit tool needs work and will be his make or break ultimately, but the eye is looking more advanced this year and there could be a breakout occurring before us as he hit .615 with 2 extra base hits, 1 homer and 11 steals this week. His big stride will lead mostly to pull power unless he refines his swing more. This is Cruz’s first time on the list since early season where he completely dominated low A, but ran into massive struggles in high A. This week Cruz had 4 extra base hits, one homer and an insane 9 steals.

Hitter Tool Grades:

  • Hit: 30/45

  • Plate Approach: 30/45

  • Power: 40/60

  • Speed: 65/65

Prospect Rank: Top 350


5. SS DJ Layton (Orioles) - A+

ETA: 2029

Comp: Switch hitting JP Crawford w/ more speed

Prime Skills: Layton didn’t play at all in his draft year and hit just .185 across 40 rough games in his 2025 complex-league debut, so this year’s breakout at Single-A Delmarva is the first real evidence the tools are translating into production. He posted a .265/.399/.416 line with 10 doubles, three triples and four homers over 54 games, and he did it while bouncing all over the field defensively, 26 games at shortstop, 11 in center, 11 at second, one at third, real up-the-middle versatility for a switch-hitter still just 20 years old. Baltimore just bumped him to High-A Frederick, and he made an immediate statement, a home run in his very first at-bat at the new level. The early Frederick returns have cooled some since, a .237 average and a .774 OPS through his first 19 games there, exactly the kind of adjustment period a jump in velocity tends to produce. He’s cracked Baltimore’s Top 30 for the first time, but there’s a lot of work to do around the hit tool and plate approach. He’s young for the level, so there’s plenty of room for growth and the athleticism gives him a leg to stand on, but he has to be more efficient on the basepaths. This week Layton hit .409 with 5 extra base hits, one homer and 5 stolen bases.

Hitter Tool Grades:

  • Hit: 30/45

  • Plate Approach: 35/45

  • Power: 30/40

  • Speed: 55/60

Prospect Rank: Top 750

This post is for paid subscribers

Already a paid subscriber? Sign in
© 2026 Jon A · Privacy ∙ Terms ∙ Collection notice
Start your SubstackGet the app
Substack is the home for great culture